San Francisco VA Health Care System

Community-Based Surgery and Postoperative Survival Among Veterans Affairs Enrollees

Importance: The Veterans Affairs Maintaining Internal Systems and Strengthening Integrated Outside Networks (VA MISSION) Act of 2018 greatly expanded Veterans Affairs (VA) enrollees' access to non-VA (community care) services. Since then, community-based utilization has increased...

Heterogeneous human muscle fibroadipogenic progenitors include a DLK1 + subpopulation that prevents fatty infiltration after injury

Fatty infiltration and fibrosis drive poor outcomes after chronic muscle injury. Here, we characterized fibroadipogenic progenitor cell (FAP) subpopulations from healthy and injured human rotator cuff muscle by single-cell RNA sequencing, full-spectrum flow cytometry, and functio...

Centering Veteran expertise: advancing peer-led harm reduction in the Veterans health administration

Abstract The principle “Nothing about us without us” underscores the ethical imperative to involve people with lived and living expertise in shaping harm reduction praxis. While the United States Veterans Health Administration (VHA) has expanded harm reduction initiatives, such a...

Phenotypic divergence in rotator cuff tear and volumetric muscle loss mouse models following fibroadipogenic progenitor depletion

Aims: Fibroadipogenic progenitors (FAPs) are a group of resident muscle stem cells capable of differentiating into fibroblasts and adipocytes, contributing to intramuscular fibrotic and fatty degeneration after injury. However, FAPs are also thought to play a crucial role in musc...